3djim Posted March 5, 2004 Share Posted March 5, 2004 "The Mac" wondered why chokers might be used on store-bought grippers. I took one of those grippers apart, i.e. removed the "choker". The legs opened very, very wide in an open state, so much so that you could never get your hand around it. In that position the gripper is in a "free" state, like the CoCs. That way, when you start to close it the force starts off at zero. However, for the choked store-bought the spring legs are closed to the choke position (i.e. about 30 degree handle spread), so that when you start to close it the starting force is NOT zero. That way the manufacturer can make a gripper with smaller spring diameter that has the same force-to-close as a gripper that has a larger wire diam and starts out in a free position. It apparently is more cost effective. Downside, though, is the gripper is always in a state of tension and probably will lose strength and die more quickly than a free-state gripper. A bit confusing. Does that make sense anyway? Quote Link to comment Share on other sites More sharing options...
AP Posted March 8, 2004 Share Posted March 8, 2004 So is that in part why the cocs get harder at the close? They start at zero and then the force increases rapidly until the close where a choked gripper starts with some level of force that increases toward the close but slowely? More to the point, would this make the 400 with choker thingie easier to close (especially at the close position) than a similarly sized gripper that starts in the 'free state'? Your post makes sense, but does mine? Quote Link to comment Share on other sites More sharing options...
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